Teach17

Metacognition is often described as “thinking about thinking”. In the physics classroom, however, it is more useful to think of it as helping pupils make better decisions about their learning.

A metacognitive pupil does not simply know an equation. They can decide whether that equation is appropriate, recognise when their method is not working, check whether an answer is physically reasonable and choose another approach when they become stuck.

This matters in physics because pupils must constantly move between words, diagrams, physical models, graphs, equations and units. Experienced physicists make many of these transitions almost automatically. Pupils may not even realise that a decision is being made.

The Education Endowment Foundation identifies metacognition and self-regulation as a high-impact, low-cost approach. Its updated 2025 guidance emphasises that metacognitive strategies are most effective when they are explicitly taught and embedded within particular subjects rather than delivered as separate, generic “thinking skills”.

Metacognition should not become another worksheet or lengthy written reflection. It should be built into the ordinary routines of explaining, questioning, calculating, experimenting and checking.

1. Teach pupils to plan, monitor and evaluate

The simplest metacognitive framework has three stages:

Plan: What am I trying to do, and how might I do it?

Monitor: Is my chosen approach working?

Evaluate: Did my method work, and what could I improve?

These stages can be applied to almost any physics task.

Before calculating acceleration, a pupil might plan by identifying the change in velocity and the time taken. While calculating, they monitor whether the values have been substituted correctly. Afterwards, they evaluate whether the direction, size and unit of the answer are sensible.

The same framework works during practical investigations. Pupils plan how to control variables, monitor the quality of their measurements and evaluate whether their evidence supports the conclusion.

Teachers do not need to display the full framework during every lesson. The aim is for these questions gradually to become part of the way pupils approach physics.

2. Build the physics knowledge metacognition depends on

Metacognition cannot compensate for missing subject knowledge.

A pupil cannot select the right strategy for a momentum question if they do not understand conservation of momentum. They cannot evaluate an answer about resistance if they do not know how resistance behaves in series and parallel circuits.

Sometimes what appears to be weak problem-solving is actually a gap in knowledge.

Before expecting pupils to work independently, check whether they possess the necessary:

• factual knowledge;
• conceptual understanding;
• mathematical skills;
• vocabulary;
• equations;
• representations;
• experience of similar problems.

Metacognition works alongside knowledge, not instead of it.

This is particularly important for pupils with weaker prior attainment. Asking them repeatedly to reflect on a task they do not understand is unlikely to help. They may need a clearer explanation, another model, more guided practice or a simpler starting point.

3. Think aloud while modelling physics

Teachers often present pupils with a polished solution in which every step appears obvious. Pupils see the finished calculation but not the decisions that produced it.

Thinking aloud makes those decisions visible.

For example:

“The question gives me the mass and velocity of the car, but it asks about the force needed to stop it. I cannot connect those quantities in one step. I will first calculate the kinetic energy and then use work done to find the force.”

Or:

“My first thought was to use speed equals distance divided by time. However, the object is accelerating, so that equation will only give me the average speed.”

This shows pupils that successful problem-solving involves:

• interpreting the question;
• considering alternatives;
• selecting a principle;
• rejecting unsuitable approaches;
• checking progress;
• changing direction when necessary.

Occasionally model a genuine false start. Expert thinking is not about never making mistakes. It is about noticing and correcting them.

Thinking aloud is specifically highlighted in the EEF’s updated guidance as a strategy that can be modelled and then gradually transferred to pupils.

4. Identify the physics before selecting an equation

Many pupils approach calculations by searching the equation sheet for a formula containing the same letters as the numbers in the question.

That may work with routine practice questions, but it breaks down when a problem requires more than one step or presents the physics in an unfamiliar context.

Before pupils select an equation, ask:

• What is happening physically?
• Which topic does this involve?
• What principle connects the quantities?
• Which quantity is changing?
• What is being conserved?
• What evidence in the question supports your choice?

For example, a question about a cyclist braking may involve kinetic energy, work done, force and stopping distance. Pupils should first recognise that the cyclist’s kinetic energy is being transferred before reaching for an equation.

Research comparing experts and novices has found that experts are more likely to classify physics problems according to underlying principles, while novices tend to focus on surface features such as ramps, springs or pulleys.

A useful routine is:

Name the physics before doing the maths.

5. Represent the problem before calculating

Physics problems often become easier when pupils translate them into another form.

They might use:

• a force diagram;
• a circuit diagram;
• a ray diagram;
• an energy pathway;
• a labelled sketch;
• a graph;
• a table of values;
• a list of known and unknown quantities.

A pupil solving a forces problem might draw every force and mark its direction. A pupil interpreting a circuit can identify where current divides and which components share the same potential difference.

Representations reduce the amount pupils must hold in working memory. More importantly, producing the representation forces pupils to interpret the physical situation.

Do not always provide a completed diagram. Sometimes the drawing is where much of the thinking happens.

After pupils have drawn it, ask:

• What does this diagram make clearer?
• Which information have you included?
• Is anything missing?
• Does the diagram match the description?
• Could the same situation be represented in another way?

6. Make prediction part of every physics topic

Prediction encourages pupils to inspect what they currently believe before being shown what happens.

Before a calculation, demonstration or practical, ask:

• Will the value increase or decrease?
• Will the graph be straight or curved?
• Which object will accelerate more?
• Will the bulb become brighter or dimmer?
• Should the answer be larger or smaller than before?
• What do you expect to happen when this variable is doubled?

The explanation matters more than the guess.

Instead of accepting “the current will increase”, ask:

“Why do you think the current will increase?”

Afterwards, return to the prediction:

• Was it supported?
• Which part of your reasoning was correct?
• What did you overlook?
• Did the result expose a misconception?
• How has your explanation changed?

This is particularly powerful when teaching topics where pupils bring strong everyday ideas, such as forces, pressure, electricity, heat and motion.

The purpose is not to catch pupils being wrong. It is to give them an opportunity to revise their mental model.

7. Ask pupils what they know and what they need

A lengthy calculation can overwhelm pupils before they have started.

Teach them to separate the problem into four parts:

1. What do I know?
2. What do I need to find?
3. Which physics connects them?
4. Are there any intermediate steps?

Consider this question:

A 1,200 kg car travelling at 15 m/s stops over a distance of 30 m. Calculate the average braking force.

A pupil might identify:

Known: mass, initial speed and stopping distance.

Needed: braking force.

Physics: kinetic energy and work done.

Intermediate step: calculate the initial kinetic energy.

This makes the planning stage visible and discourages random substitution.

It also helps teachers diagnose the problem. If a pupil cannot identify what is known, they may be struggling with reading. If they know what is needed but cannot find a connection, the difficulty may be conceptual.

8. Use worked examples actively

Worked examples are useful because they allow pupils to focus on the reasoning behind a solution without having to generate every step themselves.

However, copying a worked example is not the same as understanding it.

Add self-explanation questions such as:

• Why was this equation selected?
• Why was the mass converted into kilograms?
• What does this negative value mean?
• Why has the direction been included?
• Which physical principle justifies this step?
• What would change if the velocity doubled?
• Where is the most likely place to make an error?

Another approach is to remove part of the worked solution. Pupils might complete a missing line, add the units or explain the connection between two steps.

You can also present a completed answer and ask pupils to annotate the decisions:

“Here the solver recognised conservation of momentum.”

“Here the value was converted before substitution.”

“Here the final answer was checked against the original question.”

Research in physics education has explored how the presentation of worked examples can affect both learning and pupils’ awareness of their understanding.

The goal is to make worked examples something pupils interrogate rather than merely copy.

9. Ask pupils to compare different methods

There is not always one correct route through a physics problem.

Pupils could compare two solutions and decide:

• Which is more efficient?
• Which makes the physics clearest?
• Which is easiest to check?
• Which contains unnecessary steps?
• Which would still work if the question changed?
• Where is each method most likely to fail?

For example, gravitational potential energy could be found directly using the appropriate equation or by considering the work done against the object’s weight.

Both approaches may be valid, but comparing them helps pupils understand why one might be more useful in a particular situation.

Comparing methods develops strategic knowledge. Pupils start to learn not only how a method works, but also when and why it should be used.

It also prevents the misconception that physics is simply a collection of rigid procedures that must always be followed in exactly the same way.

10. Use confidence ratings carefully

Ask pupils to rate their confidence before you reveal an answer:

1: I guessed or do not understand my method.

2: I have started, but I am unsure about part of it.

3: I think my method and answer are correct.

4: I could explain and defend my solution.

The value lies in comparing confidence with accuracy.

A pupil who is highly confident but regularly incorrect may need to improve their checking. A pupil who produces correct answers but remains uncertain may need opportunities to explain and defend successful reasoning.

Follow the rating with:

“What evidence is your confidence based on?”

Useful evidence might include:

• the equation matches the quantities;
• the units are correct;
• the answer agrees with an estimate;
• a second method produced the same result;
• the physical relationship is sensible.

Confidence should never become a judgement of personality. The aim is better calibration: helping pupils judge more accurately what they do and do not understand.

11. Teach pupils what to do when they become stuck

“Try harder” is not a useful problem-solving strategy.

Pupils need a small set of actions they can use when they cannot see the next step.

Teach them to:

1. Reread the final sentence.
2. Identify exactly what must be found.
3. Write down the known values with their units.
4. Draw the physical situation.
5. Name the relevant topic or principle.
6. Recall a similar example.
7. Estimate what the answer might look like.
8. Break the problem into smaller steps.
9. Explain what they understand to a partner.
10. Request one clue rather than the complete solution.

These strategies can be displayed on a small classroom poster or prompt card.

When a pupil asks for help, avoid immediately demonstrating the entire solution. Begin with the least support likely to move them forward:

• a prompt;
• a question;
• a clue;
• a partially completed representation;
• a modelled first step.

The EEF describes this as a “least help first” approach, in which support is increased only when pupils remain unable to proceed.

12. Analyse mistakes rather than simply correcting them

Copying the correct answer can improve a page without improving the pupil’s thinking.

When an answer is wrong, ask:

• Where did the first error occur?
• Why did that step appear reasonable?
• Was it a physics, mathematical, reading or unit error?
• What clue could have exposed the mistake?
• What will you check in a similar problem?

Useful error categories include:

• misunderstood the situation;
• selected the wrong principle;
• chose an unsuitable equation;
• omitted an intermediate step;
• rearranged incorrectly;
• failed to convert a value;
• substituted inaccurately;
• confused scalar and vector quantities;
• misread a graph;
• omitted or misused a unit;
• accepted an impossible answer.

This changes the conversation from:

“I am bad at electricity.”

to:

“I keep treating parallel components as though they have the same current.”

The second statement identifies something that can actually be addressed.

Occasionally use anonymous incorrect solutions as a whole-class activity. Ask pupils to find the first error, explain its effect and repair the solution.

13. Make sense-checking compulsory

A number appearing on a calculator does not automatically make it a valid physics answer.

Teach pupils to check:

Units: Is the answer expressed in the quantity requested?

Magnitude: Is it far too large or too small?

Direction: Should it be positive, negative, clockwise, anticlockwise, upwards or downwards?

Relationship: If one variable increases, should the answer increase or decrease?

Realism: Could this reasonably happen?

Limiting cases: What would happen if one of the values became zero or extremely large?

Examples that should trigger concern include:

• a pupil running at 4,000 m/s;
• an efficiency of 140%;
• a negative mass;
• a domestic appliance transferring only 0.001 J in an hour;
• a car taking several days to stop;
• a calculated current of thousands of amperes in a small torch bulb.

Instead of asking only, “Have you checked your work?”, specify the type of check:

“Check the unit.”

“Compare it with a realistic value.”

“Decide whether the direction makes sense.”

“Estimate the order of magnitude.”

Checking is a strategy that must be taught, not just requested.

14. Build metacognition into practical work

Practical physics involves continuous decision-making, but pupils can become so focused on following instructions that they stop thinking about the investigation.

Before practical work, ask:

• What relationship are we investigating?
• What do we predict?
• Which variables must be controlled?
• What range and interval should we use?
• Where will the greatest uncertainty arise?
• How many repeats are appropriate?
• What pattern would support our prediction?

During the practical:

• Are the results developing a sensible pattern?
• Is the equipment behaving as expected?
• Does an unusual result need repeating?
• Is the chosen range wide enough?
• Are we changing more than one variable?
• Is our method still answering the original question?

Afterwards:

• Which measurement had the greatest uncertainty?
• Was an unusual value anomalous or simply unexpected?
• What is the weakest part of the evidence?
• Does the graph support the proposed relationship?
• Which single change would most improve the investigation?

This produces much stronger evaluation than generic comments such as “use better equipment” or “repeat it more”.

15. Structure talk around reasoning

Telling pupils to “discuss the answer” does not guarantee useful thinking. One pupil may simply state the answer while the other agrees.

Give pupils a clear purpose and structure.

One pupil might explain:

“I think the relevant principle is…”

The partner then asks:

“Why does that principle apply here?”

The first pupil continues:

“I can check my method by…”

Other useful discussion prompts include:

• What did you notice first?
• Which information did you ignore?
• When did you choose your strategy?
• Which part are you least certain about?
• What would make you change your mind?
• Can you explain the answer without using an equation?
• Can you find a weakness in this solution?
• Is there another way to represent the situation?

The EEF’s updated guidance recommends purposeful metacognitive talk organised around pupils’ knowledge of the task, available strategies and themselves as learners.

Good classroom talk should expose reasoning, not simply produce answers more quickly.

16. Apply metacognition to revision

Pupils often confuse revision activity with revision effectiveness.

They may spend an hour copying notes and assume that the time spent guarantees learning.

Help them ask:

• What exactly do I need to know?
• Can I recall it without looking?
• Which topics do I avoid?
• Am I practising recognition or genuine retrieval?
• Can I apply this knowledge to an unfamiliar question?
• What does my latest test show that I need to improve?
• Which revision strategy suits this particular task?

Different physics goals require different approaches.

To learn equations, pupils might use retrieval practice.

To improve graph interpretation, they need varied graph questions.

To improve calculations, they need practice selecting and applying equations.

To strengthen explanations, they need to construct, compare and improve written responses.

To prepare for practical questions, they need to analyse methods, variables, graphs and uncertainties.

A revision timetable that says “physics for 45 minutes” is less useful than one that says:

“Complete and mark six momentum questions, identify the cause of each error and redo the two weakest questions without notes.”

Metacognitive revision is specific, evidence-informed and responsive to performance.

17. Remove support gradually

Scaffolds should help pupils become independent, not become permanent parts of every task.

A possible progression is:

Stage 1: Teacher modelling

The teacher thinks aloud and demonstrates the entire process.

Stage 2: Guided practice

The class plans and completes the problem together.

Stage 3: Prompted practice

Pupils work with questions such as “Which principle applies?” and “How will you check?”

Stage 4: Reduced prompts

Only broader reminders remain: plan, monitor and evaluate.

Stage 5: Independent application

Pupils select and use strategies without being told which one to choose.

Support can be restored when the content becomes more complex or unfamiliar. Independence is not a fixed quality that a pupil either possesses or lacks. It depends partly on the demands of the task and the pupil’s knowledge of the topic.

The EEF describes scaffolds as temporary visual, verbal or written support that should be adjusted and gradually withdrawn as pupils become more capable of regulating their own learning.

Metacognition in physics should not mean asking pupils to complete lengthy reflections after every lesson. Its real purpose is to make the invisible decisions of successful physics more visible.

Which principle applies? What representation would help? Is this strategy working? Does the answer make sense? What could I try next?

When these questions become part of normal classroom practice, pupils are less likely to see physics as a subject in which the cleverest person instantly spots the right equation. They begin to understand that good physicists plan, question, test, check, revise and sometimes start again.